package com.atguigu.tingshu.album.service.impl;

import com.atguigu.tingshu.album.config.MinioConstantProperties;
import com.atguigu.tingshu.album.service.FileUploadService;
import io.minio.BucketExistsArgs;
import io.minio.MakeBucketArgs;
import io.minio.MinioClient;
import io.minio.PutObjectArgs;
import io.minio.errors.*;
import org.apache.commons.io.FilenameUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.UUID;

@Service
public class FileUploadServiceImpl implements FileUploadService {

    @Autowired
    private MinioConstantProperties minioConstantProperties;


    @Override
    public String upload(MultipartFile file) {
        String url = "";
        // Create a minioClient with the MinIO server playground, its access key and secret key.
        MinioClient minioClient = MinioClient.builder()
                .endpoint(minioConstantProperties.getEndpointUrl())
                .credentials(minioConstantProperties.getAccessKey(), minioConstantProperties.getSecreKey())
                .build();

        try {
            // 判断桶是否存在。
            boolean found =
                    minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioConstantProperties.getBucketName()).build());
            if (!found) {
                // 如果不存在，则创建
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioConstantProperties.getBucketName()).build());
            } else {
                //  这个桶已经存在.
                System.out.println("Bucket "+ minioConstantProperties.getBucketName() + " already exists.");
            }

            //  生成文件名。
            String fileName =  UUID.randomUUID().toString().replaceAll("-","")+"."+ FilenameUtils.getExtension(file.getOriginalFilename());
            //  调用上传方法.
            minioClient.putObject(
                    PutObjectArgs.builder().bucket(minioConstantProperties.getBucketName()).object(fileName).stream(
                                    file.getInputStream(), file.getSize(), -1)
                            .contentType(file.getContentType())
                            .build());
            //  拼接url
            url= minioConstantProperties.getEndpointUrl()+"/"+minioConstantProperties.getBucketName()+"/"+fileName;
            return url;
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}
